[maven-release-plugin] prepare release pom-manipulation-ext-0.5.4
[maven-release-plugin] prepare for next development iteration
[Fixes #56] Implementing highest-multimodule-increment version incrementing strategy to set incremental version suffix to the highest next-increment to be used in the group of modules for the build, to ensure things like project.version references still work, and to group the resulting artifacts together in the resulting repository.
Merge pull request #60 from rnc/master

Issue 58
[Fixes #54] Adding new manipulator to inject an execution of the project-sources-maven-plugin, which will run at execution root and produce a project-sources tgz in the second phase of the build lifecycle (initialize), which is after this extension has modified the pom's according to its configuration.
Clarify docs